icuSources/i18n/nfrs.h

   1 /*
   2 ******************************************************************************
   3 *   Copyright (C) 1997-2004, International Business Machines
   4 *   Corporation and others.  All Rights Reserved.
   5 ******************************************************************************
   6 *   file name:  nfrs.h
   7 *   encoding:   US-ASCII
   8 *   tab size:   8 (not used)
   9 *   indentation:4
  10 *
  11 * Modification history
  12 * Date        Name      Comments
  13 * 10/11/2001  Doug      Ported from ICU4J
  14 */
  15
  16 #ifndef NFRS_H
  17 #define NFRS_H
  18
  19 #include "unicode/uobject.h"
  20 #include "unicode/rbnf.h"
  21
  22 #if U_HAVE_RBNF
  23
  24 #include "unicode/utypes.h"
  25 #include "unicode/umisc.h"
  26
  27 #include "nfrlist.h"
  28
  29 U_NAMESPACE_BEGIN
  30
  31 class NFRuleSet : public UMemory {
  32  public:
  33   NFRuleSet(UnicodeString* descriptions, int32_t index, UErrorCode& status);
  34   void parseRules(UnicodeString& rules, const RuleBasedNumberFormat* owner, UErrorCode& status);
  35   void makeIntoFractionRuleSet() { fIsFractionRuleSet = TRUE; }
  36
  37   ~NFRuleSet();
  38
  39   UBool operator==(const NFRuleSet& rhs) const;
  40   UBool operator!=(const NFRuleSet& rhs) const { return !operator==(rhs); }
  41
  42   UBool isPublic() const { return fIsPublic; }
  43   UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
  44
  45   void  getName(UnicodeString& result) const { result.setTo(name); }
  46   UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
  47
  48   void  format(int64_t number, UnicodeString& toAppendTo, int32_t pos) const;
  49   void  format(double number, UnicodeString& toAppendTo, int32_t pos) const;
  50
  51   UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, Formattable& result) const;
  52
  53   void appendRules(UnicodeString& result) const; // toString
  54
  55  private:
  56   NFRule * findNormalRule(int64_t number) const;
  57   NFRule * findDoubleRule(double number) const;
  58   NFRule * findFractionRuleSetRule(double number) const;
  59
  60  private:
  61   UnicodeString name;
  62   NFRuleList rules;
  63   NFRule *negativeNumberRule;
  64   NFRule *fractionRules[3];
  65   UBool fIsFractionRuleSet;
  66   UBool fIsPublic;
  67   int32_t fRecursionCount;
  68
  69   NFRuleSet(const NFRuleSet &other); // forbid copying of this class
  70   NFRuleSet &operator=(const NFRuleSet &other); // forbid copying of this class
  71 };
  72
  73 // utilities from old llong.h
  74 // convert mantissa portion of double to int64
  75 int64_t util64_fromDouble(double d);
  76
  77 // raise radix to the power exponent, only non-negative exponents
  78 int64_t util64_pow(int32_t radix, uint32_t exponent);
  79
  80 // convert n to digit string in buffer, return length of string
  81 uint32_t util64_tou(int64_t n, UChar* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
  82 int64_t util64_utoi(const UChar* str, uint32_t radix = 10);
  83
  84 #ifdef RBNF_DEBUG
  85 uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
  86 int64_t util64_atoi(const char* str, uint32_t radix);
  87 #endif
  88
  89
  90 U_NAMESPACE_END
  91
  92 /* U_HAVE_RBNF */
  93 #endif
  94
  95 // NFRS_H
  96 #endif
  97